Diffuser Filter For HC405 and Oracle HC452 (10 Pack)
The Diffuser Filter For HC405 and Oracle HC452 (10 Pack) is a package of 10 diffuser filters which fits into the exhalation vent of the HC405 and Oracle HC452 mask. The diffuser filter reduces the exhalation noise of the mask.
This product is a package of 10 individual diffuser filters in two strips. This product does not include the cap which snaps onto the mask frame needed to hold the diffuser filter in place.
This diffuser filter is compatible with the following masks:
The HC405 and Oracle HC452 Diffuser Filter is compatible ONLY with the HC405 and Oracle HC452. It is NOT compatible with other masks made by Fisher and Paykel.
What I expected
It worked just fine
This filter reduces air movement around the face and also reduces noise
product works well